Wilo Atmos GIGA-N - Product Description; Design; Operation with Frequency Converter; Technical Data

en Product description
10 WILO SE 2019-04
Intended use also includes compliance with this manual. Any other use is regarded as
non-compliant with the intended use.
4 Product description
4.1 Design
The Wilo-Atmos GIGA-N pump is a single-stage back pull-out-centrifugal pump with
spiral housing for horizontal installation. Power and dimensions in accordance with
EN733.
Suitable Wilo control devices (e.g. Comfort control system, CC-HVAC) can control the
power of the pumps continuously. This allows optimisation of the pump output for the
demands of the installation and particularly economically efficient pump operation.
4.1.1 Hydraulics
The pump consists of a radially divided spiral housing (optionally with replaceable neck
rings) and cast-on pump support feet. The impeller is a closed radial impeller. The pump
shaft is supported by grease-lubricated radial ball bearings.
4.1.2 Motor
The system is driven by IEC standard motors in a three-phase current version.
NOTICE
Use a heat-resistant mains connecting cable in systems where fluid temperatures
exceed 90°C!
4.1.3 Seal
The fluid pump is sealed via a mechanical seal in accordance with EN12756.
4.2 Operation with frequency con-
verter
Operation on the frequency converter is permitted. Refer to the documentation from
the motor manufacturer for the relevant requirements and observe its contents.
4.3 Technical data
General
Date of manufacture [MFY]
See rating plate
Mains connection [U/f]
See motor rating plate
Power consumption [P
1
]
See motor rating plate
Rated power [P
2
]
See motor rating plate
Rated speed [n]
See rating plate
Max. delivery head [H]
See rating plate
Max. volume flow [Q]
See rating plate
Permissible fluid temperature [t]
-20°C to +140°C
Permissible ambient temperature
[t]
+40°C
Permissible operating pressure
[P
max
]
16bar
Flanges
PN16 in accordance withEN1092-2
Permissible fluids
– Heating water in accordance with VDI2035
– Cooling/cold water
– Water-glycol mixture up to 40% vol.
Protection class
IP55
Insulation class [Cl.]
F